Join Capital

Join Capital Join Capital is a pan-European early-stage fund backing founders whose technologies strengthen Europe's resilience and strategic autonomy. Founded in 2017, with offices in Berlin, London, and Milan, the firm manages over EUR150M and is raising a EUR235M Fund III focused on defence, dual-use, security, and space deep tech. backed by the NATO Innovation Fund and a EUR50M commitment from the European Investment Fund. The 36-company portfolio spans optics, quantum, space, and industria